μ-MasteR – the advanced evaluation module for coating thickness measurement. Newly developed algorithms offer universal solutions for almost all coatings used in industry. Even complex multi layer coatings can be examined however, sometimes, the laws of physics determine the actual limits. The analysis of alloy coatings can be performed without any problem giving, as results, the composition and thickness simultaneously. Also here multi layer coatings can be analysed. The typical measurement time is from a few seconds up to 30 seconds, depending in the required precision.